TM 9-2320-364-20-22-1609DOORSHOWNREMOVEDFOR CLARITYFIELD COILPOS (+) TERMINALFAN CONTROLSWITCHENGINESWITCHHEADLIGHTSWITCH(1) Set multimeter select switch tovolts dc.(2) Connect positive (+) multimeter lead to the field coil positive (+) terminal of the alternator. (3) Connect negative () multimeter lead to known good ground.(4) Start engine and turn on headlights and heater (TM 9-2320-364-10).(a) If at least 5 vdc are not present, turn off heater, headlights and engine. Go to Step 7 of this Fault.(b) If at least 5 vdc are present, turn off heater, headlights and engine. Go to Step 6 of this Fault.VOLTAGE TESTRemove all jewelry such as rings, dog tags, bracelets, etc. If jewelry or tools contact positive electrical circuits, a direct short may result. Damage to equipment, injury or death to personnel may occur.